1993 Mustang Cobra 5.0 Supercharger Install
This is one of the many supercharger installations I have done. I do
things slightly different than the kit instructions recommends to make
a cleaner, more dependable install. First, I never have cut an A/C hose
during a supercharger install. Instead I bend them and modify the existing
hoses and lines to fit. This reduces the chance of leaks. I always mount
the FMU (fuel management unit) well away from any exhaust components as
well. On this car it is mounted under the air cleaner and all the factory
steel fuel lines on the engine are retained. This supercharger is a Kenne
Bell screw type unit which is positive a displacement compressor. I
prefer the positive displacement superchargers (roots or screw) since they
give full boost by at least 2000rpm giving the engine large power increases
across the entire rpm range.
This car was a blast to drive. In first gear, no matter how easy
you applied the throttle, by the time it was to the floor tires were smoking.
It felt like I had just installed a 7.5L engine. It had torque everywhere.
It had big gains at the top too.
Kenne Bell uses Autorotor Lysholm compressors. Autorotor is an
Opcon company. The Autorotor compressor has about 85% adiabatic efficiency.
This keeps the charge air temperature down and reduces back-work required
to drive the blower. For comparison, a typical Roots blower is only
about 50% efficiant. Eaton has done a great job pushing that number
to 60% for their Roots designs.